Remaining On For At Least 30 Seconds; Machine Remains On - Fresenius Medical Care 2008T Troubleshooting Manual

P- 3.0.1 REMAINIING ON FOR AT LEAST 30 SECONDS
With the machine on, QUICKLY unplug the keypad's green ribbon cable from the UI-MICS Board's J4
connector. TWO (2) possible scenarios:
IF the machine stays on after unplugging the cable:
1)
and with the shunt door open allow up to one (1) hour. If the machine STAYS on see procedure number
P- 3.0.2 (page 707). If it turns itself off again see OTHER POSSIBILITIES below.
OTHER POSSIBILITIES: Swap in the following components (see Component List below) one at a
time, with known good, and in between if the machine remains on the last component swapped in
was the problem.
Component List:
1) Power Logic Board; 2) Power Logic Board cable; 3) Main Relay (K1). To LOCATE K1 refer to
Figure 132
IF the machine turns off before unplugging the cable:
2)
keypad itself. Replace it HOWEVER, if the problem reoccurs see OTHER POSSIBILITIES below:
OTHER POSSIBILITIES: Swap in the following components (see Component List below) one at a
time, with known good, and in between, if the machine remains on the last component swapped in
was the problem:
Component List:
1) Power Logic Board; 2) Power Logic Board cable; 3) Main Relay (K1)*. *To LOCATE K1 refer to
Figure 132 (page 710).
P- 3.0.2 MACHINE REMAINS ON
The most likely culprit is the keypad HOWEVER, this can be confirmed by, while leaving the machine on plug
the keypad back in. Allowing up to one (1) hour, if the machine turns itself off again the keypad (Figure
below) is for bad!
(page 710).
2008T Troubleshooting Guide
P/N 490292 Rev. A
Place the machine into Heat Disinfect
The most likely culprit is the
Page 707